3901860 has 72 divisors (see below), whose sum is σ = 12088440. Its totient is φ = 1018368.

The previous prime is 3901853. The next prime is 3901867. The reversal of 3901860 is 681093.

3901860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3901853) and next prime (3901867).

It can be written as a sum of positive squares in 4 ways, for example, as 1542564 + 2359296 = 1242^2 + 1536^2 .

It is a super-2 number, since 2×3901860² = 30449022919200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3901867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9336 + ... + 9744.

It is an arithmetic number, because the mean of its divisors is an integer number (167895).

Almost surely, 2^3901860 is an apocalyptic number.

3901860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3901860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6044220).

3901860 is an abundant number, since it is smaller than the sum of its proper divisors (8186580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3901860 is a wasteful number, since it uses less digits than its factorization.

3901860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 3901860 is about 1975.3126334836. The cubic root of 3901860 is about 157.4311112186.

It can be divided in two parts, 3901 and 860, that added together give a square (4761 = 69²).

The spelling of 3901860 in words is "three million, nine hundred one thousand, eight hundred sixty".